During what social shift did Canada see the increased acceptance of multiculturalism?

The post-World War II era marked a significant social shift in Canada, during which the country increasingly embraced multiculturalism. After the war, there was a growing recognition of the need for inclusivity and diversity due to the changes brought about by the movement of populations, wartime experiences, and the subsequent arrival of diverse immigrant groups seeking a new life.

This period was characterized by a shift in societal attitudes, moving away from a focus on assimilation towards a celebration of cultural diversity. The Canadian government's policies began to reflect this acceptance, leading to the recognition of multiculturalism as a fundamental aspect of Canadian identity. Key developments, such as the introduction of the Canadian Multiculturalism Act in 1988, were grounded in the social changes initiated in the years following the war. This context highlights why the post-World War II era is pivotal in understanding the acceptance of multiculturalism in Canada.

While the other options mention significant historical events, they do not align with the specific shift towards multicultural acceptance that characterized the immediate post-war period. The Industrial Revolution transformed economies and migration patterns, the Great Depression primarily focused on economic strife and recovery, and the Cold War emphasized geopolitical tensions rather than societal integration and diversity.